when the PCV valve is bad (clogged, stuck, ....) a P0172 or other lean code is usually set. I don't have any code but I never replaced it and now 135K. Do I really have to? and will it make a difference in oil consumption, power, or drive-ability?
Did anyone do this simple job and felt a change in motor operation?
I already ordered it and will receive it in a couple of days, but i'm baffled by the fact that there isn't much info or videos out there about this thing and it looks like the people who replaced it, only did so because the had a code set or some serious problem and that's why i started this thread, but haven't got a convincing reply yet
